New Orleans, LA 70164 Frost Dates
Frost dates for New Orleans, LA, ZIP 70164
Typically, the last spring freeze lands around 02/10, roughly 166 days out. The first fall frost typically arrives around 12/17, about 309 frost-free days later.
Zone 9b (25 to 30°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for New Orleans, not a forecast for this year.
What to do before the first frost
Zone 9b around New Orleans has about 16 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
Why 02/10 isn't a guarantee
02/10 is the middle of 30 years of NOAA records, not a promise. Plant by 01/12 and you're betting against frost in roughly 9 years out of 10. 03/08 is the safer bet, historically only a 1-in-10 chance of frost that late.
How New Orleans compares
About 309 days separate New Orleans's last and first frost, putting it 3,611 of 40,283 ZIP codes nationally. Within LA, it ranks 105 of 710.
Learn more
zone vs. frost date explains why Zone 9b and New Orleans's frost date answer different questions, and the frost range explains how to read the range around New Orleans's dates instead of trusting one.